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Relevant bibliographies by topics / Neural protection / Dissertations / Theses

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Dissertations / Theses on the topic 'Neural protection'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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1

Chen, Zhihong. "Application of artificial neural networks to power system protection." Doctoral thesis, Universite Libre de Bruxelles, 1997. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212176.

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2

Sanaye-Pasand, Majid. "Transmission line directional protection using neural networks and filtering algorithms." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0020/NQ54824.pdf.

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3

AL-Shareefi, Hussein. "Neutral network corrosion control by impressed cathodic protection." Thesis, Högskolan Dalarna, Maskinteknik, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:du-4258.

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Eriksson, David. "Using Neural Networks to Identify Infected Files for Protection against Ransomware." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-170251.

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This master thesis report presents the development process and result of an artificial neural network model that can predict if a file has been encrypted. It was developed as a stand alone component that can be implemented in to a backup system. The development process was tested to determine the best possible outcome and it was implemented to a rudimentary backup system. The resulting software was a command line interface that gave the user full access to the training and testing process. The backup system is also implemented in this command line interface for test purposes. The model was suc

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Xuan, Qing-Yun. "Adaptive protection and control systems for controllable series compensated EHV transmission using neural networks." Thesis, Liverpool John Moores University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337860.

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6

Jeram, Geoffrey James Joseph. "Open Platform for Limit Protection with Carefree Maneuver Applications." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4933.

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This Open Platform for Limit Protection guides the open design of maneuver limit protection systems in general, and manned, rotorcraft, aerospace applications in particular. The platform uses three stages of limit protection modules: limit cue creation, limit cue arbitration, and control system interface. A common set of limit cue modules provides commands that can include constraints, alerts, transfer functions, and friction. An arbitration module selects the best limit protection cues and distributes them to the most appropriate control path interface. This platform adopts a holistic ap

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袁綺珊 and Yee-shan Cherry Yuen. "High impedance fault detection and overvoltage protection in low voltage power systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31222146.

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Yuen, Yee-shan Cherry. "High impedance fault detection and overvoltage protection in low voltage power systems /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20735297.

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9

Unnikrishnan, Suraj. "Adaptive Envelope Protection Methods for Aircraft." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11478.

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Carefree handling refers to the ability of a pilot to operate an aircraft without the need to continuously monitor aircraft operating limits. At the heart of all carefree handling or maneuvering systems, also referred to as envelope protection systems, are algorithms and methods for predicting future limit violations. Recently, envelope protection methods that have gained more acceptance, translate limit proximity information to its equivalent in the control channel. Envelope protection algorithms either use very small prediction horizon or are static methods with no capability to adapt to cha

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10

Kim, Mingoo. "Application of computational intelligence to power system vulnerability assessment and adaptive protection using high-speed communication /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/5855.

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Akins, Mark S. "The Role of the Neuronal gap Junction Protein Connexin36 in Kainic Acid Induced Hippocampal Excitotoxicity." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/30392.

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Kainic acid induced excitotoxicity causes pyramidal cell death in the CA3a/b region of the hippocampus. Electrical synapses, gap junctional communication, and single membrane channels in non-junctional membranes (hemichannels) composed of connexin36 (Cx36) have been implicated in both seizure propagation and the spread of excitotoxic cell death. In rats, Cx36 protein is expressed by pyramidal neurons. Localization of protein in mouse, however, is highly controversial. Expression is reported to be restricted to hippocampal interneurons yet the same excitotoxic mechanisms (electrical and metabol

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Varkiani, Shahriar. "Application des réseaux neuronaux flous à l'identification et la protection d'un transformateur triphasé /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1998. http://theses.uqac.ca.

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Bazzocchi, Luca. "User Internet Protection mediante Classificazione di Pagine Web con Text Mining." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21640/.

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La classificazione di pagine web, ovvero il raggruppamento delle pagine in categorie sulla base del contenuto, come testo in linguaggio naturale, link, immagini e video sta diventando un problema sempre più importante da affrontare ed è proprio attraverso la conoscenza, ottenuta dai sorgenti html, che si cerca di raggiungere tale classificazione. Le pagine web e quindi i loro sorgenti html, non sono presenti né in schemi né in modelli composti da regole tali da definire la forma e tipologia dei dati contenuti, questo porta ad una loro difficile comprensione. Il Text Mining è il processo

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Oleskovicz, Mário. "Redes neurais artificiais : uma alternativa para proteção de linhas de transmissão." Universidade de São Paulo, 1997. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-29102015-164611/.

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Este trabalho apresenta a aplicação de Redes Neurais Artificiais (RNAs) como um classificador de padrões para as operações do relé de distância. As grandezas analisadas referem-se aos valores trifásicos de tensões e correntes do sistema elétrico, incluindo a seqüência zero. Para a obtenção dos valores amostrais da linha de transmissão em condição faltosa, valores estes utilizados como entradas para as arquiteturas de RNAs em seus processos de treinamento e teste, utilizou-se do software Alternative Transients Program - ATP. Para se observar o desempenho do relé de distância implementado, duas

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Zhang, Nan. "Advanced fault diagnosis techniques and their role in preventing cascading blackouts." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4897.

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This dissertation studied new transmission line fault diagnosis approaches using new technologies and proposed a scheme to apply those techniques in preventing and mitigating cascading blackouts. The new fault diagnosis approaches are based on two time-domain techniques: neural network based, and synchronized sampling based. For a neural network based fault diagnosis approach, a specially designed fuzzy Adaptive Resonance Theory (ART) neural network algorithm was used. Several ap- plication issues were solved by coordinating multiple neural networks and improving the feature extraction method.

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Zhu, Xiaoyan. "Progesterone in Stroke Cerebroprotection : Metabolites, Target Cells, and Role of Neural Progesterone Receptors (PR)." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS449.

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L’accident vasculaire cérébral (AVC) déclenche une cascade de changements qui conduisent à la mort cellulaire mais aussi des processus endogènes de protection en réponse à l'ischémie. La compréhension de ces processus est très importante pour le développement d’agents neuro-protecteurs potentiels qui peuvent être seulement des amplificateurs des processus endogènes. Le traitement par la progestérone est neuro-protecteur dans des modèles expérimentaux d’occlusion de l'artère cérébrale moyenne (MCAO). Cependant, des niveaux endogènes significatifs de progestérone sont mesurables dans le cerveau

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Krill, Jennifer. "Neuroprotection during Acute Hyperthermic Stress| Role of the PKG Pathway in Neurons and Glia in the Protection of Neural Function in Drosophila melanogaster." Thesis, Florida Atlantic University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10809769.

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<p> The human brain functions within a narrow range of temperatures and variations outside of this range incur cellular damage and death and, ultimately, death of the organism. Other organisms, like the poikilotherm <i>Drosophila melanogaster</i>, have adapted mechanisms to maintain brain function over wide ranges in temperature and, if exposed to high temperatures where brain function is no longer supported, these animals enter a protective coma to promote survival of the organism once the acute temperature stress is alleviated. </p><p> This research characterized the role of different ne

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Rabiaa, Entedhar Kadhum Hussain. "An in vitro model of the impact of chemotherapy on neural stem cells and the protection provided by cells in the neurogenic niche." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/49274/.

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Chemotherapy has been highly successful in treating many forms of cancer; however there are increasing reports that this treatment causes cognitive declines in cancer survivors. These effects have been called “chemobrain” and while not affecting all patients, can persist for many years after the completion of treatment. The symptoms of chemobrain include a decline in concentration, memory and attention which are associated with a lower quality of life and in ability to return to work. Very little is known about the mechanisms behind these changes, or even the brain regions that are affected. A

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Tiruveedhula, Mohan P. "Artificial neural networks to detect forest fire prone areas in the southeast fire district of Mississippi." Master's thesis, Mississippi State : Mississippi State University, 2008. http://library.msstate.edu/etd/show.asp?etd=etd-05192008-120103.

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20

Ngamjariyawat, Anongnad, Kyril Turpaev, Svitlana Vasylovska, Elena N. Kozlova, and Nils Welsh. "Co-Culture of Neural Crest Stem Cells (NCSC) and Insulin Producing Beta-TC6 Cells Results in Cadherin Junctions and Protection against Cytokine-Induced Beta-Cell Death." Uppsala universitet, Neuroanatomi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-198839.

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PURPOSE: Transplantation of pancreatic islets to Type 1 diabetes patients is hampered by inflammatory reactions at the transplantation site leading to dysfunction and death of insulin producing beta-cells. Recently we have shown that co-transplantation of neural crest stem cells (NCSCs) together with the islet cells improves transplantation outcome. The aim of the present investigation was to describe in vitro interactions between NCSCs and insulin producing beta-TC6 cells that may mediate protection against cytokine-induced beta-cell death. PROCEDURES: Beta-TC6 and NCSC cells were cultured ei

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Meldau, Eva-Lisa. "Deep Neural Networks for Inverse De-Identification of Medical Case Narratives in Reports of Suspected Adverse Drug Reactions." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-223604.

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Medical research requires detailed and accurate information on individual patients. This is especially so in the context of pharmacovigilance which amongst others seeks to identify previously unknown adverse drug reactions. Here, the clinical stories are often the starting point for assessing whether there is a causal relationship between the drug and the suspected adverse reaction. Reliable automatic de-identification of medical case narratives could allow to share this patient data without compromising the patient’s privacy. Current research on de-identification focused on solving the task o

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Carvalho, Janison Rodrigues de. "Estatísticas de ordem superior e redes neurais artificiais aplicadas à proteção digital de linhas de transmissão." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-06052013-083525/.

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Neste trabalho, é apresentado e discutido um novo modelo para proteção de Linhas de Transmissão. O sistema proposto executa, individualmente, as etapas tradicionais da filosofia de proteção de distância: detecção, classificação e localização. Este modelo emprega Estatísticas de Ordem Superior (EOS) como ferramenta de extração de características, para posterior aplicação das Redes Neurais Artificiais (RNAs). As RNAs são responsáveis pelas tomadas de decisões do sistema, no sentido de identificar a ocorrência da falta e o tipo da mesma, além de localizar a falta no que tange às zonas de proteção

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23

Silva, Rogério Cesar Serapião. "Projeto diferencial de geradores síncronos: o uso de redes neurais artificiais para identificação e correção da saturação dos transformadores de corrente." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-16042012-155039/.

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Este trabalho tem como objetivo apresentar um algoritmo de proteção diferencial de geradores baseado em Redes Neurais Artificiais (RNAs), que seja robusto e confiável em situações onde os algoritmos padrões podem apresentar dificuldades, como no caso, da saturação de TCs. O algoritmo desenvolvido é constituído por dois módulos principais: a) um módulo de detecção da saturação dos transformadores de corrente (TCs) empregados na proteção diferencial de geradores e; b) um módulo de correção das formas de onda distorcidas devido à saturação dos TCs. Os módulos utilizam RNAs para detectar e corrigi

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Segatto, Ênio Carlos. "Relé diferencial para transformadores de potência utilizando ferramentas inteligentes." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-19022016-144637/.

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Este trabalho apresenta a proposta de um sistema completo de proteção diferencial de transformadores de potência, aplicando-se as técnicas de Redes Neurais Artificiais (RNAs). O esquema proposto busca a classificação do sistema de proteção como um problema de reconhecimento e reconstrução de padrões, representando um método alternativo aos algoritmos convencionais. Vários fatores como, por exemplo, as situações de energização do transformador e a saturação dos transformadores de corrente, podem causar uma má operação do dispositivo de proteção. Com o objetivo de melhoramento na proteção digita

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Tang, Daogui. "A simulation-based modeling framework for the analysis and protection of smart grids against false pricing attacks." Thesis, université Paris-Saclay, 2021. http://www.theses.fr/2021UPAST017.

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L’intégration des technologies de l’information et de la communication (ICT) dans les réseaux électriques permet un échange de communication bidirectionnel entre les clients et les services publics, ce qui contribue gager les clients dans divers programmes de réponse à la demande (DR) des réseaux intelligents (SG), tels que la tarification en fonction du temps d’utilisation (TOU) et la tarification en temps réel (RTP). Toutefois, cela expose les réseaux intelligents à des menaces supplémentaires provenant de la couche ICT du système cyber physique. En effet, la menace de cyber-attaques est dev

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Jorge, David Calhau. "Redes neurais artificiais aplicadas a proteção de sistemas elétricos de potência." Universidade de São Paulo, 1997. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-19012018-161622/.

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Um relé de distância utilizado na proteção de Linhas de Transmissão é usualmente projetado para atuar sob condições fixas de operação. Portanto, o desempenho destes relés é afetado pela mudança no ponto de operação do sistema. Grandes avanços, relativos à proteção, podem ser alcançados com a implementação de reconhecimento de padrões para o diagnóstico de faltas em sistemas elétricos de potência. Este trabalho demonstra a utilização de Redes Neurais Artificiais operando como um classificador de padrões para a operação de um relé de distância. O projeto utiliza a magnitude dos fasores das três

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Oleskovicz, Mário. "Aplicação de redes neurais artificiais na proteção de distância." Universidade de São Paulo, 2001. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-28102015-102007/.

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O presente trabalho visa apresentar um modelo alternativo e completo de proteção para linhas de transmissão utilizando-se de Redes Neurais Artificiais (RNAs). Pela aplicação, busca-se um modelo que venha a realizar a detecção do defeito, a classificação quanto ao tipo de falta ocorrida e a localização da mesma no que diz respeito à verificação das zonas de proteção em um menor tempo se comparado com as propostas convencionais. As grandezas analisadas referem-se a valores amostrados de tensões e correntes do sistema elétrico, cujos valores foram obtidos através de simulações computacionais util

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SOUZA, ROSE M. G. do P. "Determinação do fator de pico de potência utilizando barras de controle, detectores ex-core e redes neurais." reponame:Repositório Institucional do IPEN, 2005. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11296.

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Made available in DSpace on 2014-10-09T12:50:25Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:58:44Z (GMT). No. of bitstreams: 1 10895.pdf: 9491478 bytes, checksum: a17089904688d31b0c3d8e9056a263b2 (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Petite, Fernanda Soares Vitor. "Aplicação de redes neurais artificiais na detecção, classificação e localização de faltas em sistemas elétricos de potência." reponame:Repositório Institucional da UFABC, 2017.

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Orientador: Prof. Dr. Ricardo Caneloi dos Santos<br>Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Engenharia Elétrica, 2017.<br>O Sistema Elétrico de Potência (SEP) possui como função básica fornecer energia elétrica aos consumidores, com qualidade adequada e no instante em que for solicitada. Os eventos de falta no SEP, podem resultar em problemas de qualidade e confiabilidade no fornecimento de energia, tornando necessária a correta detecção, classificação e localização destes eventos. Além da complexidade inerente a realização dessas tarefas, a inserção

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Breda, Jáder Fernando Dias. "Algoritmo híbrido e inteligente para o diagnóstico das condições operativas de transformadores de potência no contexto da qualidade da energia elétrica." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-17082012-144756/.

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Esta pesquisa teve como objetivo o desenvolvimento de um algoritmo computacional capaz de diagnosticar as condições operativas de transformadores de potência. As variáveis tomadas como base para classificar as condições apresentadas se referem às usualmente empregadas pela lógica de proteção diferencial, ou seja, a corrente diferencial e o conteúdo harmônico presente nos sinais em análise. Além disto, foi também verificada a relação entre alguns dos fenômenos associados à falta de qualidade da energia elétrica originados pelos consumidores conectados no secundário e refletidos ao primário do t

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Almeida, Fernando Mendonça de. "Autoproteção para a internet das coisas." Universidade Federal de Sergipe, 2016. https://ri.ufs.br/handle/riufs/3361.

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Fundação de Apoio a Pesquisa e à Inovação Tecnológica do Estado de Sergipe - FAPITEC/SE<br>The Internet of Things is a new paradigm of communication based on the ubiquitous presence of objects that, having unique address, they can cooperate with their peers to achieve a common goal. Applications in several areas can benefit from this new paradigm, but the Internet of Things is very vulnerable to attack. The large number of connected devices make an autonomic approach necessary and the small amount of resources requires the use of efficient techniques. This paper proposes a self-protection

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Silva, Lazaro Eduardo da. "Tecnologias WEB aplicadas aos sistemas elétricos de potência." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-04102010-153801/.

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A utilização de equipamentos digitais e de meios de comunicação de dados, na conexão entre os dispositivos de uma subestação de energia elétrica oportunizam o uso de tecnologias para aprimorar e elevar as potencialidades de controle e supervisão do sistema elétrico de potência. As concessionárias de energia elétrica demandam altos investimentos na construção e implantação de sistemas de supervisão, controle e aquisição de dados. A partir destes sistemas é possível visualizar em um mapa da rede elétrica, os pontos de instalação dos relés e os status do seu funcionamento, possibilitando a concre

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Schroeter, Hagen. "Oxidative stress and neuronal dysfunction : mechanisms of flavonoid protection." Thesis, King's College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396046.

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Baxter, Paul Stuart. "Neuronal activity-dependent protection against apoptotic and oxidative insults." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/6524.

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Patterns of physiological electrical activity in the central nervous system (CNS) cause longlasting changes in gene expression that promote neuronal survival. These changes can be mediated by signalling pathways activated by Ca2+ influx through synaptic N-methyl DAspartate receptors (NMDARs). Identification and study of these, and other neuroprotective signalling pathways of the CNS, is invaluable; as this may one day lead to therapeutic strategies against the deleterious effects of CNS injury or degeneration. The data presented in this thesis focuses on activity-dependent neuroprotection and

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Urushitani, Makoto. "Mechanism of selective motor neuronal death after exposure of spinal cord to glutamate : involvement of glutamate-induced nitric oxide in motor neuron toxicity and nonmotor neuron protection." Kyoto University, 2000. http://hdl.handle.net/2433/180818.

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McKay, Hart Andrew. "Sensory neuronal protection & improving regeneration after peripheral nerve injury." Doctoral thesis, Umeå universitet, Handkirurgi, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-52.

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Peripheral nerve trauma is a common cause of considerable functional morbidity, and healthcare expenditure. Particularly in the ~15% of injuries unsuitable for primary repair, standard clinical management results in inadequate sensory restitution in the majority of cases, despite the rigorous application of complex microsurgical techniques. This can largely be explained by the failure of surgical management to adequately address the neurobiological hurdles to optimal regeneration. Most significant of these is the extensive sensory neuronal death that follows injury, and which is accompanied by

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Netto, Ulisses Chemin. "Determinação de um parâmetro para monitoramento do desempenho de mensagens GOOSE do padrão IEC 61850 utilizadas em subestações de energia elétrica." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-16102012-083711/.

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O desenvolvimento e utilização do padrão IEC 61850 alterou a concepção e operação das subestações de energia elétrica. O desempenho e confiabilidade do sistema de proteção depende da rede de comunicação de dados. Esta pesquisa propõe um parâmetro de dimensionamento e comparação de desempenho para o tempo de transferência das mensagens Generic Object Oriented Substation Event (GOOSE) entre Intelligent Electronic Devices (IEDs). Esse parâmetro foi obtido através do levantamento experimental da curva do tempo de transferência das mensagens GOOSE versus a ocupação percentual da largura de banda do

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Martin, Lundmark. "High-frequency noise in power grids, neutral and protective earth /." Luleå : Luleå tekniska universitet/Tillämpad fysik, maskin- och materialteknik/Energiteknik, 2006. http://epubl.ltu.se/1402-1757/2006/64/LTU-LIC-0664-SE.pdf.

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Lundmark, Martin. "High-frequency noise in power grids, neutral and protective earth." Licentiate thesis, Luleå tekniska universitet, Energivetenskap, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26643.

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This licentiate thesis deals with the high-frequency distortion, 1 kHz and higher, introduced into the power grid by the numbers of power converters in use today. These devices can be a source of electromagnetic interference and equipment damage despite the fact that the equipment complies product-standards testing. The thesis discusses upcoming sources of emission, uncertainties in emission level and changing circumstances, with focus on the impact on the neutral conductor and the protective earth. The principles of three-phase power transmission and distribution are presented together with a

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Zahra, Fathima. "Artificial neural network approach to transmission line relaying." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0001/MQ42465.pdf.

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Malafry, Melina. "Biodiversity Protection in an Aspiring Carbon-Neutral Society : A Legal Study on the Relationship between Renewable Energy and Biodiversity in a European Union Context." Doctoral thesis, Uppsala universitet, Juridiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-305736.

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There is a vision in the EU for a transition to a low carbon society, including a carbon-neutral energy system, containing a high share of renewable energy. However, this vision is not isolated from other political goals, such as halting the loss of biodiversity by 2020. Both of these goals are accompanied by EU legislation promoting their respective aims. One of the central challenges, in light of this transition, is the very nature of the legal system – that it is rather fragmented – both regarding the substantive law applicable to renewable energy activities and the legal processes that ren

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Borel, Thomas. "Study of synergistic effects in integrated circuits subjected to ionizing and neutral radiation in space." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS040/document.

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Tout composant envoyé dans l'espace est soumis à de nombreuses contraintes (radiations, température) qui peuvent conduire à une défaillance de l'ensemble du système. Dans un avenir proche, ces contraintes deviendront de plus en plus critiques à mesure que les agences spatiales développeront des missions visant d'autres planètes, telles que Jupiter, pour lesquelles la contrainte radiative est extrême. Dans ce travail, deux types d'effets dus aux radiations sont étudiés : les effets cumulatifs et les effets transitoires. L'un correspond à la dégradation induite par les radiations au cours du tem

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Hamilton, Alexander. "Non-invasive imaging techniques and evaluation of sensory neuronal protection by N-acetylcysteine." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/noninvasive-imaging-techniques-and-evaluation-of-sensory-neuronal-protection-by-nacetylcysteine(552b129a-5491-45b6-9f9d-c9dcff2c3e43).html.

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Background & Objectives: The potential benefits of adjuvant pharmacotherapy with N-acetylcysteine and acetyl-L-carnitine to reduce the amount of primary sensory neurons in the dorsal root ganglion (DRG) which die by apoptosis after peripheral nerve injury has been previously established. However, the duration of NAC therapy sufficient to achieve neuroprotection is unknown. Establishment of clinical trials of NAC/ALCAR therapy is hindered by relatively poor existing methods of assessment of neuronal populations and nerve regeneration in human subjects. Magnetic Resonance Imaging (MRI), a non-in

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Sultan, Audrey. "Tau nucléaire : un acteur clé dans le stress neuronal." Phd thesis, Université du Droit et de la Santé - Lille II, 2010. http://tel.archives-ouvertes.fr/tel-00627214.

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Les protéines Tau sont impliquées dans plusieurs maladies neurodégénératives dénommées tauopathies, dont la plus fréquente est la maladie d'Alzheimer. Ces maladies se caractérisent par une accumulation intracellulaire de protéines Tau hyper- et anormalement phosphorylées sous forme de filaments. Ces lésions, dont l'origine et le rôle exact restent mal connus, sont au cœur d'un processus dégénératif conduisant à de nombreux troubles cognitifs et/ou moteurs et aboutissant le plus souvent à un syndrome de démence. Les protéines Tau appartiennent à la famille des protéines associées aux microtubul

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Lu, Jianyu. "Syntheses of quinolines as neural protective reagents and progress towards total synthesis of (+) - myriceric acid A." Diss., Kansas State University, 2014. http://hdl.handle.net/2097/27652.

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Doctor of Philosophy<br>Department of Chemistry<br>Duy H. Hua<br>The first chapter of this dissertation introduces and discusses the syntheses of a series of substituted quinolines as glycogen synthase kinase-3[beta] (GSK-3[beta]) inhibitors. GSK-3[beta] is highly associated with Alzheimer’s disease (AD), and it is suggested that inhibition of this enzyme could alleviate the symptoms of AD. Total 16 novel substituted quinolines were designed and synthesized, and their bio-activities were evaluated on MC65 cell protection assay. Four of the most active compounds were selected to test their enzy

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Romeo, Guitart David. "Boosting endogenous mechanisms for neuronal protection and repair after injury in central nervous system." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/458129.

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Les neurones tenen mecanismes endògens de neuroprotecció que son capaces d’activar en front d’insults que poden provocar la seva mort. Les motoneurones (MNs) activen aquests mecanismes quan sofreixen una axotomía distal (DA) del nervi ciàtic. D’altra banda, en una lesió més proximal al seu soma com és l’avulsió d’arrel (RA), aquests mecanismes no són activats i les MNs acaben degenerant. Per tant, les dues lesions provoquen una separació de les MNs dels seus òrgans diana, però el resultat és diferent ja que en la DA aquestes sobreviuen i regeneren, mentre que en la RA aquestes moren. Si elucid

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Ravati, Alexander. "On the role of reactive oxygen species in signal transduction, neuronal degeneration, and protection." [S.l.] : [s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=962370703.

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Vasilic, Slavko. "Fuzzy neural network pattern recognition algorithm for classification of the events in power system networks." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/436.

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This dissertation introduces advanced artificial intelligence based algorithm for detecting and classifying faults on the power system transmission line. The proposed algorithm is aimed at substituting classical relays susceptible to possible performance deterioration during variable power system operating and fault conditions. The new concept relies on a principle of pattern recognition and detects the existence of the fault, identifies fault type, and estimates the transmission line faulted section. The approach utilizes self-organized, Adaptive Resonance Theory (ART) neural network, combin

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Evans, Ben Richard. "Data-driven prediction of saltmarsh morphodynamics." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/276823.

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Saltmarshes provide a diverse range of ecosystem services and are protected under a number of international designations. Nevertheless they are generally declining in extent in the United Kingdom and North West Europe. The drivers of this decline are complex and poorly understood. When considering mitigation and management for future ecosystem service provision it will be important to understand why, where, and to what extent decline is likely to occur. Few studies have attempted to forecast saltmarsh morphodynamics at a system level over decadal time scales. There is no synthesis of existing

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Silva, Chrystian Dalla Lana da. "Estimação fasorial aplicada a relés de proteção numéricos utilizando os métodos de ajuste de curvas e redes neurais artificiais." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/8536.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This dissertation proposes two methodologies for the phasor estimation on protective relays in Electrical Power Systems. Firstly, a theoretical introduction of signal processing, the structure of a protective relay and phasor estimation algorithms is presented, including some of the algorithms used on the electrical system, as well as the two proposed methodologies. The first one makes use of the concept of curve-fitting, while the other uses Artificial Neural Networks, both with the goal of performing the real-time estimation of t

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